Jerry: I think I got flea bites.
Kramer: Flea bites?
Jerry: Yeah. Look at this. My ankle's all bitten up.
Kramer: You got a dog?
Jerry: No.
Kramer: Well, that is strange.
Jerry: How can I have fleas?
Kramer: Don't sweat it, buddy. I used to have fleas.
Jerry: What did you do about them?
Kramer: What do you mean?